Final answer:
To find out how many 7/5ft pieces can be cut from a 10ft piece, divide the length of the 10ft piece by the length of each 7/5ft piece. The answer is 7.
Step-by-step explanation:
To find out how many 7/5ft pieces can be cut from a 10ft piece, we need to divide the length of the 10ft piece by the length of each 7/5ft piece.
Dividing 10 by 7/5, we get:
10 ÷ 7/5 = 10 × 5/7 = 50/7 = 7 1/7
So, 7 1/7 of the 7/5ft pieces can be cut from a 10ft piece.
Therefore, the answer is 7 (Option B).